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16-letter words containing p, f, a, c

  • pacific sturgeon — a dark gray sturgeon, Acipenser transmontanus, inhabiting marine and fresh waters along the northwestern coast of North America, valued as a food and sport fish.
  • packing fraction — Physics. a measure of the stability of an atomic nucleus, equal to 10 4 multiplied by the mass defect and divided by the mass number.
  • pair of scissors — two-bladed cutting tool
  • partial fraction — one of the fractions into which a given fraction can be resolved, the sum of such simpler fractions being equal to the given fraction: Partial fractions of 5/(x2−x) are 5/(x−1) and −5/x.
  • partial function — A function which is not defined for all arguments of its input type. E.g. f(x) = 1/x if x /= 0. The opposite of a total function. In denotational semantics, a partial function f : D -> C may be represented as a total function ft : D' -> lift(C) where D' is a superset of D and ft x = f x if x in D ft x = bottom otherwise where lift(C) = C U bottom. Bottom (LaTeX \perp) denotes "undefined".
  • pathetic fallacy — the endowment of nature, inanimate objects, etc., with human traits and feelings, as in the smiling skies; the angry sea.
  • peace conference — a conference where representatives of warring governments or countries sign a treaty to end conflict
  • peregrine falcon — a globally distributed falcon, Falco peregrinus, much used in falconry because of its swift flight: several subspecies are endangered.
  • perforated ulcer — an ulcer that bursts through the stomach wall and leaks food and gastric juices into the abdominal cavity
  • performance bond — contract bond.
  • performance test — a test requiring little or no use of language, the test materials being designed to elicit manual or behavioral responses rather than verbal ones.
  • personal effects — belongings
  • persulfuric acid — Also called Caro's acid, permonosulfuric acid, peroxymonosulfuric acid, peroxysulfuric acid. a white, crystalline solid, H 2 SO 5 , used as an oxidizing agent for certain organic compounds.
  • phase difference — the difference between two sinusoidally varying quantities that have the same frequency, measured either as an angle or a time
  • physical fitness — good physical condition
  • place of worship — religious house: church, temple
  • placement office — an office in a university that offers students careers advice and help to find employment
  • platform-balance — a scale with a platform for holding the items to be weighed.
  • point of contact — (networking)   (POC) An individual associated with a particular Internet entity (IP network, domain, ASN).
  • powerpc platform — (architecture, standard)   (PPCP, PReP - PowerPC Reference Platform, formerly CHRP - Common Hardware Reference Platform) An open system standard, designed by IBM, intended to ensure compatibility among PowerPC-based systems built by different companies. The PReP standard specifies the PCI bus, but will also support ISA, MicroChannel and PCMCIA. PReP-compliant systems will be able to run the Macintosh OS, OS/2, WorkplaceOS, AIX, Solaris, Taligent and Windows NT. IBM systems will (of course) be PReP-compliant. Apple's first PowerPC Macintoshes will not be compliant, but future ones may be.
  • practical effect — Usually, practical effects. a special effect that is created live on the set of a film, using real-world objects.
  • preference share — a share of preferred stock.
  • prespecification — the act of specifying.
  • prima facie case — a case in which the evidence produced is sufficient to enable a decision or verdict to be made unless the evidence is rebutted.
  • prince's feather — a tall, showy plant, Amaranthus hybridus erythrostachys, of the amaranth family, having reddish foliage and thick spikes of small, red flowers.
  • prince's-feather — a tall, showy plant, Amaranthus hybridus erythrostachys, of the amaranth family, having reddish foliage and thick spikes of small, red flowers.
  • principal rafter — a diagonal member of a roof principal, usually forming part of a truss and supporting the purlins on which the common rafters rest.
  • puddling-furnace — the act of a person or thing that puddles.
  • pull a long face — to look sad, glum, disapproving, etc.
  • racial profiling — the use of personal characteristics or behavior patterns to make generalizations about a person, as in gender profiling.
  • rape of the lock — a mock-epic poem (1712) by Alexander Pope.
  • reflection plane — a plane through a crystal that divides the crystal into two halves that are mirror images of each other.
  • self-complacency — pleased with oneself; self-satisfied; smug.
  • self-deprecating — belittling or undervaluing oneself; excessively modest.
  • self-deprecation — belittling or undervaluing oneself; excessively modest.
  • self-deprecatory — belittling or undervaluing oneself; excessively modest.
  • self-exculpatory — intended to excuse oneself from blame or guilt
  • self-explication — the act of explicating.
  • self-proclaiming — to announce or declare in an official or formal manner: to proclaim war.
  • self-replicating — reproducing itself by its own power or inherent nature: self-replicating organisms.
  • slap in the face — smack on the cheek
  • software package — bundle of files to execute computer program
  • specific gravity — the ratio of the density of any substance to the density of some other substance taken as standard, water being the standard for liquids and solids, and hydrogen or air being the standard for gases.
  • specific surface — The specific surface is the ratio of a particle's surface area to its volume or mass.
  • spreading factor — a substance, as hyaluronidase, that promotes the diffusion of a material through body tissues
  • stonecrop family — the plant family Crassulaceae, characterized by succulent herbaceous plants and shrubs with simple, fleshy leaves, clusters of small flowers, and dry, dehiscent fruit, and including hen-and-chickens, houseleek, kalanchoe, live-forever, orpine, sedum, and stonecrop.
  • superfecundation — the fertilization of two or more ova discharged at the same ovulation by successive acts of sexual intercourse.
  • superficialities — being at, on, or near the surface: a superficial wound.
  • superunification — a theory intended to describe the electromagnetic force, the strong force, the weak force, and gravity as a single, unified force.
  • surface-printing — planography.
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